The molding facility of fire sprinkler bulb developed by ourselves obtained the approval from the experts at provincial level in 1998 and has been put into use since then, producing different types such as OD 3mm, 5mm, 8mm with different temperature sensitive levels. Now we have an annual productivity of 50 million bulbs. After successfully passing the evaluation of the State Bureau of Quality and Technical Supervision, our company obtained the production license. The company is a member of China Fire Protection Association and Fire Protection Associations at provincial or municipal levels. In 2000 we joined AFSA, which means that our products have reached the technical standard for sprinklers set by ISO.